By the time Nate pulls up to the accident, there are cops everywhere and they're loading Serena into the ambulance. Concussed, she just keeps asking for Trip, who is nowhere to be seen, and her last statement is that Trip was driving before they take her away. Nate stares from the ambulance to the crushed Land Rover to the hole Serena's head made in the windshield to the fact that Trip was driving and is no longer there to the ambulance to the crushed Land Rover to the hole Serena's head made in the windshield, and slooooowly puts it together and calls Trip immediately, hissing "Trip? I need to see you. Right now. You meet me at the hospital or I'm going to the cops."

Lily comes home to Rufus cooking up a nice Bolognese (her favorite, remember): "I figured you could use some comfort food today." She asks if the kids are home and he cutely says they aren't yet, and he gets worried when she says she has something to tell him, but before she can there's a phone call from the 516 and then as her face falls and she gets very scared very fast, "Right Where They Left" by White Rabbits starts playing, which in this context is an explanation of how Trip is pretty great in some ways but kind of a cocksucker in other ways, and then there's another incredible montage.

The ceiling's falling down around your feet
Right where they left you

Right where they left you on the floor

Dan's not feeling Willa or her disgusting synthetic fabrics, and as he's begging off with every possible excuse to disentangle himself from her mess, his phone rings and he's entirely grateful for that, until he answers it.

The smoke's rising outside your room
Where you let grass grow under your feet

Right where they left you
Right where I left you

Dan catapults himself to Blair's room, where she's just taken a shower, and without even thinking she grabs a robe and runs off down the hallway with him, confused Vanessa in tow, Paul Hoffman left far behind. I know the group -- which, like it or not, should and does include Abrams at this point -- mostly only get into attack formation when Serena's imperiled, but that's only because Blair's so rarely imperiled by things you can actually fight.